"In a survey of more than 1,600 minority professionals, Dr. Hewlett and Princeton professor Cornel West found..."
Cornel West is not credible.
Cornel West is a wacko, but a likable wacko (at least to me).
Nothing I have ever seen from him would lead me to believe he is not credible.
Just because someone doesn't agree with us doesn't make them in-credible when it comes to facts.